CN111149400B

CN111149400B - Method for directly connecting link data transmission, terminal equipment and network equipment

Info

Publication number: CN111149400B
Application number: CN201780095315.0A
Authority: CN
Inventors: 李明超; 刘航; 王和俊; 肖潇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2022-07-22
Anticipated expiration: 2037-09-27
Also published as: EP3672339B1; EP3672339A1; CN111149400A; EP3672339A4; US11665674B2; US20200229150A1; WO2019061103A1

Abstract

The application provides a method for directly connecting link data transmission, terminal equipment and network equipment. The method comprises the following steps: a first terminal device receives first configuration information sent by a network device, wherein the first configuration information comprises information of a transmission resource set, and the transmission resource set is a transmission resource set shared by a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode; the first terminal equipment detects the load degree of the resource units in the transmission resource set according to the information of the transmission resource set; and the first terminal equipment sends report information to the network equipment according to the load degree, wherein the report information comprises the information of occupied resource units and/or the information of available resource units in the transmission resource set. The conflict between the transmission resource allocated to the first terminal device and the transmission resources of other terminal devices can be avoided, and the communication quality and the user experience of the terminal devices are improved.

Description

Method for directly connecting link data transmission, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and in particular, to a method, a terminal device, and a network device for transmitting data of a direct link in the field of communications.

Background

The vehicle can acquire road condition information or receive information service in time through vehicle to vehicle communication (V2V) or vehicle to roadside infrastructure communication (V2I) or vehicle to pedestrian communication (V2P) or vehicle to network communication (V2N), which can be collectively referred to as V2X communication (X stands for anything). We call the network used for V2X communication the internet of vehicles. The data transmission of the direct connection link is mainly the data transmission or information interaction process between two terminal devices, and the internet of vehicles is an important component in the communication of the direct connection link at present.

At present, direct link communication based on a Long Term Evolution (LTE) system is mainly divided into two transmission modes, one is a centralized scheduling transmission mode, and in this mode, before sending data, a sending end device needs to apply for a transmission resource to a base station each time, and sends direct link communication service data according to the transmission resource allocated by the base station. Another mode is a distributed transmission mode, in which a sending end device may obtain a configuration of a transmission resource pool in advance, and when the sending end device needs to send communication data of a direct link, may autonomously select a transmission resource from the obtained transmission resource pool and send the data.

Typically, the transmission resource pool for the distributed transmission mode and the transmission resource pool for the centralized scheduling transmission mode are orthogonal and are network planned. But this static partitioning results in lower resource utilization. Thus, it is currently allowed that the distributed and centrally scheduled resource pools are non-orthogonal, i.e. some (or even all) of the transmission resources in the two types of resource pools may overlap. The resources of the overlapping part can be used by a distributed transmission mode or a centralized scheduling transmission mode. When the distributed transmission resource pool and the centralized scheduling resource pool are allowed to overlap, for the resources of the overlapping part, it is possible that the terminal devices using different transmission modes occupy the same transmission resource, which may cause transmission collision, so that data sent by the terminal devices using different transmission modes and using the same transmission resource cause mutual interference, and the receiving end device may not correctly receive the data. Therefore, the communication quality of the user is influenced, and the user experience is not good.

Disclosure of Invention

The application provides a method for directly connecting link data transmission, terminal equipment and network equipment. Under the condition that the distributed transmission resource set and the centralized scheduling resource pool are overlapped, the terminal equipment can detect the resource units in the transmission resource set and send the information of the idle or available resource units in the transmission resource set to the network equipment, so that the conflict between the transmission resource allocated to the first terminal equipment and the transmission resources of other terminal equipment can be avoided, and the communication quality and the user experience are improved.

In a first aspect, a method for data transmission of a direct link is provided, including: a first terminal device receives first configuration information sent by a network device, wherein the first configuration information comprises information of a transmission resource set, and the transmission resource set is a transmission resource set shared by a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode; the first terminal equipment detects the load degree of the resource units in the transmission resource set according to the information of the transmission resource set; and the first terminal equipment sends report information to the network equipment according to the load degree, wherein the report information comprises the information of occupied resource units and/or the information of available resource units in the transmission resource set.

In the method for transmitting data of a direct link provided in the first aspect, when a distributed transmission resource set and a centralized scheduling resource pool are overlapped, a network device may send configuration information of the transmission resource set (overlapped resource pool) to a first terminal device that needs to apply for transmission resources, the first terminal device may detect a resource unit in the transmission resource set, determine a usage situation of the transmission resource set, and send information of an idle or available resource unit in the transmission resource set to the network device, and the network device allocates transmission resources to the first terminal device according to the information of the resource unit. This can avoid the collision between the transmission resource allocated to the first terminal device and the transmission resources of other terminal devices. The first terminal equipment is ensured to be capable of communicating smoothly, and communication quality and user experience are improved.

In a possible implementation manner of the first aspect, the first configuration information further includes a first threshold and/or a second threshold, where the first threshold is smaller than or equal to the second threshold, and before the first terminal device sends the report information to the network device, the method further includes: the first terminal device determines to send the report information to the network device if the load degree is greater than or equal to the first threshold; or, the first terminal device determines to send the report information to the network device when the load degree is greater than or equal to the first threshold and less than or equal to the second threshold; or, in case that the load degree is less than or equal to the second threshold, the first terminal device determines to send the report information to the network device.

In one possible implementation manner of the first aspect, the load degree includes: a load level of resource units used by the third terminal device in the transmission resource set; or, a load degree of resource units used by the second terminal device and the third terminal device in the transmission resource set.

In a possible implementation manner of the first aspect, the first configuration information further includes a third threshold M and/or a fourth threshold T, M is less than or equal to T, and the method further includes: the first terminal equipment determines K available resource units in the transmission resource set, wherein K is less than or equal to M; or, the first terminal device determines K available resource units in the transmission resource set, where K is greater than or equal to T; or, the first terminal device determines K available resource units in the transmission resource set, where K is greater than or equal to M and less than or equal to T; the available resource unit information in the report information is information of the K available resource units.

In a possible implementation manner of the first aspect, before the first terminal device detects the load degree of the resource units in the transmission resource set, the method further includes: the first terminal device receives second configuration information sent by the network device, wherein the second configuration information includes a fifth threshold and/or a sixth threshold, and the fifth threshold is smaller than or equal to the sixth threshold; the first terminal device detects the load degree of the resource unit in the transmission resource set according to the information of the transmission resource set, including: the first terminal device determines to start detecting the load degree in a case where the signal quality of the network device detected by the first terminal device is less than or equal to a fifth threshold, or the first terminal device determines to start detecting the load degree in a case where the signal quality of the network device detected by the first terminal device is greater than or equal to a sixth threshold, or the first terminal device determines to start detecting the load degree in a case where the signal quality of the network device detected by the first terminal device is greater than or equal to the fifth threshold and less than or equal to the sixth threshold.

In a possible implementation manner of the first aspect, the first terminal device employs a centralized scheduling transmission mode or a distributed transmission mode.

In a possible implementation manner of the first aspect, after the first terminal device sends the report information to the network device, the method further includes: the first terminal device receives resource scheduling information sent by the network device, where the resource scheduling information is generated according to the report information, and the resource scheduling information includes resource unit information in the transmission resource set allocated to the first terminal device.

In a second aspect, a method for data transmission of a direct link is provided, including: the network equipment sends first configuration information to the first terminal equipment, wherein the first configuration information comprises information of a transmission resource set, and the transmission resource set is a transmission resource set which is shared by the second terminal equipment adopting a centralized scheduling transmission mode and the third terminal equipment adopting a distributed transmission mode; the network device receives report information sent by the first terminal device, wherein the report information includes information of occupied resource units and/or information of available resource units in the transmission resource set.

In the method for transmitting direct link data provided in the second aspect, when a distributed transmission resource set and a centralized scheduling resource pool are overlapped, a network device may send configuration information of the transmission resource set (overlapped resource pool) to a terminal device that needs to apply for transmission of a resource, the terminal device may detect resource units in the transmission resource set, determine a usage situation of the transmission resource set, and send information of idle or available resource units in the transmission resource set to the network device, and the network device allocates transmission resources to the terminal device according to the information of the resource units. This can avoid the conflict between the allocation of transmission resources to the terminal device and the transmission resources autonomously selected by the terminal device using the distributed transmission mode. The communication of the terminal equipment can be ensured, and the communication quality and the user experience are improved.

In a possible implementation manner of the second aspect, the first configuration information further includes a first threshold and/or a second threshold, the first threshold is smaller than or equal to the second threshold, and the first threshold and/or the second threshold are used for the first terminal device to determine to send the report information to the network device according to the load degree of the transmission resource set.

In a possible implementation manner of the second aspect, the first configuration information further includes a third threshold M and/or a fourth threshold T, M is less than or equal to T, and the available resource unit information in the report information is information of K available resource units, where K is less than or equal to M, or K is greater than or equal to T, or K is greater than or equal to M and less than or equal to T.

In a possible implementation manner of the second aspect, the method further includes: the network device sends second configuration information to the first terminal device, where the second configuration information includes a fifth threshold and/or a sixth threshold, the fifth threshold is less than or equal to the sixth threshold, and the fifth threshold and/or the sixth threshold are used for the first terminal device to determine to start detecting the load degree of the transmission resource set.

In one possible implementation manner of the second aspect, the load degree includes: a load level of resource units in the transmission resource set used by the third terminal device; or, a load degree of resource units used by the second terminal device and the third terminal device in the transmission resource set.

In a possible implementation manner of the second aspect, the first terminal device adopts a centralized scheduling transmission mode or a distributed transmission mode.

In a possible implementation manner of the second aspect, after the network device receives the report information sent by the first terminal device, the method further includes: and resource scheduling information sent by the network device to the first terminal device, the resource scheduling information being generated according to the report information, the resource scheduling information including resource unit information in the transmission resource set allocated to the first terminal device.

In a third aspect, a terminal device is provided, which comprises a processor, a memory and a transceiver, and is used for supporting the terminal device to execute the corresponding functions in the method. The processor, the memory, and the transceiver are connected through communication, the memory stores instructions, the transceiver is configured to perform specific signal transceiving under the driving of the processor, and the processor is configured to call the instructions to implement the method for direct link data transmission in the first aspect and various implementations thereof.

In a fourth aspect, a terminal device is provided, which includes a processing module, a storage module, and a transceiver module, and is configured to support the terminal device to execute a function of the first terminal device in the first aspect or any possible implementation manner of the first aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software, and the hardware or the software includes one or more modules corresponding to the function.

In a fifth aspect, a network device is provided, which comprises a processor, a memory and a transceiver, and is used for supporting the network device to execute the corresponding functions in the method. The processor, the memory and the transceiver are connected through communication, the memory stores instructions, the transceiver is used for executing specific signal transceiving under the driving of the processor, and the processor is used for calling the instructions to implement the method for direct link data transmission in the second aspect and various implementation manners thereof.

A sixth aspect provides a network device, which includes a processing module, a storage module, and a transceiver module, and is configured to support the network device to execute the functions of the network device in any possible implementation manner of the second aspect, where the functions may be implemented by hardware, and may also be implemented by hardware to execute corresponding software, and the hardware or the software includes one or more modules corresponding to the functions.

In a seventh aspect, a communication system is provided, where the communication system includes the terminal device provided in the third aspect or the fourth aspect and the network device provided in the fifth aspect or the sixth aspect. The communication system may implement the method for directly connecting link data transmission provided in the first aspect and the second aspect.

In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program comprising instructions for performing the method of the first aspect or any one of the possible implementations of the first aspect.

In a ninth aspect, there is provided a computer readable storage medium for storing a computer program comprising instructions for performing the method of the second aspect or any one of the possible implementations of the second aspect.

Drawings

FIG. 1 is a schematic illustration of the communication of V2V and V2I.

Fig. 2 is a schematic diagram of orthogonal distributed and centrally scheduled transmission resource pools.

Fig. 3 is a schematic diagram of a partial overlap of distributed and centrally scheduled transmission resource pools.

Fig. 4 is a schematic illustration of an overlapping portion of transmission resource collisions between distributed transmission resource pools and centrally scheduled transmission resource pools.

Fig. 5 is a schematic diagram of an exemplary application scenario according to an embodiment of the present application.

Fig. 6 is a schematic flow chart of a method for direct link data transmission according to an embodiment of the present application.

Fig. 7 is a schematic flow chart diagram of a method for direct link data transmission according to another embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a terminal device according to another embodiment of the present application.

FIG. 10 is a schematic block diagram of a network device of one embodiment of the present application.

Fig. 11 is a schematic block diagram of a network device according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) system, or a New Radio (NR) system, etc.

The terminal device in the embodiments of the present application may be a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a communication apparatus, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (wLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment of the present application.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (nodeb, NB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved node b (eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the present embodiment is not limited herein.

Along with the continuous development of society, the popularization degree of automobiles is higher and higher, driving and traveling brings convenience to traveling of people, meanwhile, certain negative effects are brought to human society, and a series of problems of urban traffic jam, frequent traffic accidents, poor environment quality and the like are caused by the rapid increase of the number of vehicles. According to statistics, nearly 20 thousands of traffic accidents occur in 2013 in China, 5.8 people are died, the direct economic loss reaches 10.4 hundred million yuan, and a set of perfect Intelligent Traffic System (ITS) is required in aspects of personal safety, traffic travel efficiency, environmental protection, economic effect and the like. Currently, ITS is also a global focus of attention.

At present, vehicles can obtain road condition information or receive information service in time through V2V, V2I, V2P or V2N, and these communication modes can be collectively referred to as V2X communication. Taking the most common V2V and V2I as examples, fig. 1 is a schematic illustration of the communication of V2V and V2I. As shown in fig. 1, the vehicles communicate with each other through V2V, and can broadcast information such as their speed, direction of travel, specific location, whether or not to step on an emergency brake, etc. to surrounding vehicles, and drivers of surrounding vehicles can better perceive traffic conditions outside the line of sight by obtaining such information, thereby making advance prejudgment on dangerous conditions and making avoidance. For V2I communication, in addition to the above-mentioned interaction of security information, roadside infrastructure, for example, a Road Side Unit (RSU) can provide various service information for vehicles and access to data networks, and functions such as charging without parking and entertainment in vehicles greatly improve traffic intelligence. We call the network used for V2X communication the internet of vehicles. The internet of vehicles is an important part in the direct link communication at present.

The LTE is a mainstream wireless communication technology at present, and a relevant standard is established for the service characteristics and transmission requirements of V2X, so that the LTE-based V2X direct communication is supported. V2X communication based on LTE system is mainly divided into two transmission modes:

centralized scheduling transmission Mode (also referred to as Mode 3): in this mode, before sending data, the sending end device needs to apply for transmission resources by the base station each time, and sends the V2X service data according to the transmission resources allocated by the base station. For the centralized transmission mode, because the transmission resources of the sending end device are dynamically and uniformly allocated by the base station, the situation that the same resources are allocated to the adjacent terminal devices does not occur, and thus the centralized transmission mode can ensure better transmission reliability. However, since signaling interaction is required between the sending end device and the base station each time, the transmission delay is relatively long in the distributed transmission mode. For one sending end device, the resource condition allocated by the base station to other sending end devices is not known.

Distributed transmission Mode (also referred to as Mode 4): in this mode, the sending end device may obtain the configuration of the transmission resource pool in advance, and when the sending end device needs to send V2X data, it may autonomously select a transmission resource from the transmission resource pool obtained in advance and send the data. Since the sending-end device autonomously selects resources, a situation may occur in which different sending-end devices select the same resources, and therefore transmission collision may occur. But lower transmission delay is possible because the distributed transmission mode does not require interactive signaling with the base station. For the base station, the situation that the transmitting-end device selects the transmission resource is not known.

As shown in fig. 2, fig. 2 is a schematic diagram of orthogonal distributed transmission resource pools and centrally scheduled transmission resource pools. The pool of transmission resources for the distributed transmission mode and the pool of transmission resources for the centrally scheduled transmission mode (also referred to as "transmission resource set") are orthogonal and are network planned. This static partitioning results in lower resource utilization. For example, under the coverage of the base station, most UEs are configured to use the distributed transmission mode to transmit V2X traffic data in the distributed transmission resource pool, and only a few users are configured to use the centralized scheduling mode to transmit V2X traffic data in the centralized scheduling transmission resource pool. This may result in a high load on the distributed transmission resource pool. Although the load of the centralized scheduling resource pool is very low, due to the orthogonality of resource pool division, the terminal in the distributed transmission mode cannot use the resource pool, so that the resource utilization rate is low. And vice versa.

As an enhancement, as shown in fig. 3, fig. 3 is a schematic diagram of a distributed transmission resource pool and a centrally scheduled transmission resource pool partially overlapping. The transmission resource pools may allow non-orthogonality between the distributed transmission resource pools and the centralized scheduling resources, i.e. some (or even all) of the transmission resources in the two types of resource pools may overlap. Such resources may be used either by a distributed transmission mode or by a centrally scheduled transmission mode.

In the case where there is an overlap between the distributed (mode4) and centrally scheduled (mode3) resource pools, it is possible for the overlapping portions of resources that terminal devices using different transmission modes occupy the same transmission resource, which may cause transmission collisions. Fig. 4 is a schematic illustration of an overlapping portion of transmission resource collisions between distributed transmission resource pools and centrally scheduled transmission resource pools. As shown in fig. 4, the resource units allocated by the base station to the UE1 (using the mode3 transmission mode) are the same resource units as the resource units autonomously selected by the UE2 (using the mode4 transmission mode). In this case, the UE1 and the UE2 use the same transmission resource to transmit resources, which may cause mutual interference, and cause that the receiving end device cannot correctly receive data, thereby affecting the communication quality of the user and causing poor user experience. In particular, for a sender device using the mode3 transmission mode, which needs to guarantee highly reliable transmission, resources cannot be allowed to collide.

Based on the above problem, the embodiments of the present application provide a method for directly connecting link data transmission. The problem of transmission resource collision of terminal equipment in different transmission modes under the condition that a distributed transmission resource pool and a centralized scheduling resource pool are overlapped can be avoided, so that the communication quality of a user is improved, and the terminal equipment using a mode3 transmission mode can normally transmit data. The direct link data transmission is mainly data transmission between two terminal devices or an information interaction process.

Fig. 5 is a schematic view of a typical application scenario in an embodiment of the present application, and the technical solution of the present application may be applied to a direct link communication scenario with network coverage, for example, as shown in fig. 5, a V2X application scenario, where a vehicle and a vehicle may communicate with each other through a network provided by a network device.

It should be understood that the embodiment of the present application is only illustrated by taking the application scenario shown in fig. 5 as an example, but the embodiment of the present application is not limited to this, for example, in the system shown in fig. 5, a vehicle may communicate with more other types of facilities, and the technical solution of the embodiment of the present application may also be applied to other direct link communication technologies or communication processes between devices (device-to-device, D2D).

Fig. 6 is a schematic flowchart of a method 100 for transmitting data of a direct link according to an embodiment of the present application, and the method 100 may be applied to the scenario shown in fig. 5, and of course, may also be applied to other communication scenarios, which is not limited herein in the embodiment of the present application.

As shown in fig. 6, the method 100 includes:

s110, a network device sends first configuration information to a first terminal device, where the first configuration information includes information of a transmission resource set, the transmission resource set is a common transmission resource set for a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode, and correspondingly, the first terminal device receives the first configuration information.

S120, the first terminal device detects a load condition of a resource unit in the transmission resource set according to the information of the transmission resource set.

S130, the first terminal device sends report information to the network device according to the load condition, where the report information includes information of occupied resource units and/or information of available resource units in the transmission resource set. Accordingly, the network device receives the report information.

In the method for directly connecting link data transmission provided in the embodiment of the present application, when a distributed transmission resource set and a centralized scheduling resource pool are overlapped, a network device may send configuration information of the transmission resource set to a first terminal device that needs to apply for transmission resources, where the first terminal device may detect a resource unit in the transmission resource set, determine a usage situation of the transmission resource set, and send information of an idle or available resource unit in the transmission resource set to the network device, and the network device allocates transmission resources to the first terminal device according to the information of the resource unit. Therefore, the conflict between the transmission resource allocated to the first terminal device and the transmission resource autonomously selected by the terminal device adopting the distributed transmission mode or the transmission resource of the terminal device adopting the centralized scheduling transmission mode can be avoided. The first terminal equipment is ensured to be capable of smoothly communicating, and communication quality and user experience are improved.

Specifically, in S110, the network device may send first configuration information to the first terminal device, the first configuration information including information of the transmission resource set. The set of transmission resources is a set of transmission resources common to a second terminal device (mode3 UE) employing a centralized scheduling transmission mode and a third terminal device (mode4 UE) employing a distributed transmission mode. The resources used by the first terminal device in transmitting data may be allocated by the network device. That is, the first terminal device is allocated with transmission resources in the transmission resource set, since resource units in the transmission resource set can also be utilized by the third terminal device adopting the distributed transmission mode, that is, the transmission resources are integrated into one shared transmission resource set, and the resources in the shared transmission resource set allow the second terminal device adopting the centralized scheduling transmission mode and the third terminal device adopting the distributed transmission mode to share and use.

It should be understood that, in this embodiment of the present application, the second terminal device and the third terminal device are only used for distinguishing terminal devices adopting different transmission modes, the second terminal device and the third terminal device represent two different types of terminal devices, and the number of the second terminal device and the third terminal device may be one or multiple. When the first terminal device needs to transmit data, the network device allocates transmission resources to the first terminal device in the resource pool (transmission resource set), which is not limited herein in this embodiment of the present application.

It should also be understood that the first terminal device may be the second terminal or the third terminal, and the embodiments of the present application are not limited herein.

It should also be understood that the second terminal device and the third terminal device may represent terminal devices with different versions of capabilities, for example, the second terminal device and/or the third terminal device may be terminals of LTE release 14 and/or release 15, or may be terminals of 5G release. The embodiments of the present application are not limited thereto.

It should also be appreciated that the first terminal device may employ a centrally scheduled transmission mode or a distributed transmission mode. In this embodiment, the first terminal device may adopt a centralized scheduling transmission mode, that is, the required transmission resource may be configured by the network device. In this way, the network device allocates transmission resources to the first terminal device according to the information of the resource units in the transmission resource set. This can avoid the conflict between the allocation of transmission resources to the first terminal device and the transmission resources autonomously selected by the terminal device using the distributed transmission mode. The first terminal equipment is ensured to be capable of communicating smoothly, and communication quality and user experience are improved.

The first terminal device may also adopt a distributed transmission mode, i.e. the required transmission resources may be selected autonomously by the first terminal device. Because the first terminal device detects the load degree of the transmission resource set and reports the information of the occupied resource units and/or the information of the available resource units in the transmission resource set to the network device, when the first terminal device autonomously selects resources, the problem of conflict caused by selecting the same resource units does not occur, and the communication quality is ensured. And the network device may send the information of the occupied resource units and/or the information of the available resource units in the transmission resource set to other terminal devices adopting a distributed transmission mode, or allocate transmission resources to other terminal devices adopting a centralized scheduling transmission mode according to the information of the occupied resource units and/or the information of the available resource units in the transmission resource set. And the conflict between the transmission resource distributed to the terminal equipment adopting the centralized scheduling transmission mode and the transmission resource autonomously selected by the terminal equipment adopting the distributed transmission mode can be avoided. The smooth communication of the terminal devices is ensured,

it should be understood that the transmission resource set may be a currently used centrally scheduled transmission resource set of the first terminal device, a subset of the currently used centrally scheduled transmission resource set, another independent resource pool or resource set partially or completely overlapping the currently used centrally scheduled transmission resource set, a subset of another distributed transmission resource pool, or another independent resource pool or resource set completely orthogonal to the currently used centrally scheduled transmission resource set. The embodiments of the present application are not limited thereto.

Optionally, the network device may send the configuration information through Radio Resource Control (RRC) dedicated signaling or system information. The configuration information may also be sent by other ways, and the embodiment of the present application is not limited herein.

Optionally, as an embodiment, before S110, the method 100 may further include:

s109, the first terminal device sends request information to the network device when data transmission is needed, where the request information is used to apply for time-frequency resources for data transmission from the network device. For example, the request information may include information such as the number of resource units required. The embodiments of the present application are not limited thereto.

In S120, the first terminal device detects, according to the information of the transmission resource set, a loading level of a resource unit in the transmission resource set. The load degree may include a proportion of occupied resources to total resources, or a total amount of occupied resources, or a total amount of available resources, and the like. The embodiments of the present application are not limited thereto.

For example, the first terminal device detects an occupation of resource units in the set of transmission resources. The first terminal device may detect a ratio/number of occupied transmission resources of the transmission resource set, which may be a ratio/number of transmission resource units occupied by the second terminal device in the transmission resource set, or a ratio/number of transmission resource units occupied by the third terminal device in the transmission resource set. Further, when the first terminal device detects the ratio/number of transmission resource units occupied by the second terminal device and the third terminal device in the transmission resource set, the first terminal device may determine whether the corresponding resource unit is occupied by the second terminal device or the third terminal device by reading the mode indication information in the direct link data sent on the resource unit. The mode indication information may be located in a media access control protocol data unit (MAC PDU) corresponding to the received direct link data, or may be located in Scheduling Assignment information (SA) corresponding to the direct link data. The embodiments of the present application are not limited thereto.

Optionally, the first terminal device may further determine whether a resource unit in the transmission resource set is available by detecting an energy of the resource unit. For example, when the first terminal device does not detect energy on a transmission resource unit or the energy threshold is less than or equal to a preset threshold value, the first terminal device determines that the transmission resource unit is available, i.e., unoccupied. Or when the energy on the resource is detected to be more than or equal to a preset threshold and the data priority is higher than another threshold, one resource is considered to be occupied; or the data on one resource can be considered occupied when successfully decoded. The embodiments of the present application are not limited thereto.

Optionally, when the first terminal device determines, on a transmission resource unit, according to the reservation information in the decoded data, that the resource unit is no longer reserved for a subsequent period of time, the first terminal device determines that the transmission resource unit is idle. The transmission resource unit may be a transmission sub-channel, and the information of the transmission resource unit may be a time-frequency resource location or a transmission resource identifier of the resource unit. The embodiments of the present application are not limited thereto.

It should be understood that, in the embodiment of the present application, the first terminal device may utilize multiple detection methods to detect whether the resource unit in the transmission resource set is occupied, and may detect other indexes that may represent load levels. The embodiments of the present application are not limited thereto.

It should also be understood that, in this embodiment of the present application, when the third terminal device in the distributed transmission mode utilizes the resource unit in the transmission resource set to transmit data, the transmission resource may be selected in a manner of listening first and then reserving, that is, when it is listened that a certain resource unit is idle, the resource unit may be reserved for use by itself within a certain fixed time period later, that is, within the fixed time period, the resource unit is in an occupied state.

In S130, the first terminal device sends report information to the network device according to the load condition, where the report information includes information of occupied resource units and/or information of available resource units in the transmission resource set. Optionally, the report information may further include a load degree of all or a part of the resource units in the transmission resource set, and may further include other load information in the transmission resource set. Accordingly, the network device receives the report information.

It should be understood that the information of the resource unit may be time-frequency resource information, may be bitmap information (each bit (bit) represents a time-frequency resource or a channel), and may also be index identification information of a resource position or a channel, and the like, which is not limited herein in this embodiment of the application.

Optionally, as an embodiment, as shown in fig. 7, the method 100 may further include:

s140, the network device generates resource scheduling information according to the report information, where the resource scheduling information includes resource unit information in the transmission resource set allocated to the first terminal device.

S150, the network device sends the resource scheduling information to the first terminal device. Correspondingly, the first terminal device receives the resource scheduling information.

At S140, the network device generates resource scheduling information according to the report information, i.e. according to the information of occupied resource units or the information of available resource units in the transmission resource set. The resource scheduling information comprises resource unit information in the set of transmission resources allocated for the first terminal device. That is, the network device determines the resource unit allocated to the first terminal device from the available resource units, for example, the number of a certain or some idle resource units, the time-frequency resource location, or the transmission resource identifier, etc. The embodiments of the present application are not limited thereto.

In S150, the network device sends the resource scheduling information to the first terminal device. Correspondingly, the first terminal device receives the resource scheduling information. And (4) optional. After receiving the resource scheduling information, the first terminal device may transmit data on the resource unit according to the information of the resource unit allocated to itself in the resource scheduling information. Therefore, the transmission resources allocated to the first terminal equipment and the transmission resources autonomously selected by the terminal equipment adopting the distributed transmission mode can not generate conflict. The method and the device ensure that the terminal equipment adopting the centralized scheduling transmission mode can smoothly communicate, and improve the communication quality and the user experience.

It should be understood that, in the embodiment of the present application, the granularity of the resource elements included in the transmission resource set may be a Physical Resource Block (PRB), may be a Resource Element Group (REG), may also be a Control Channel Element (CCE), and the like, and the embodiment of the present application is not limited herein.

Optionally, as an embodiment, the first configuration information further includes a first threshold and/or a second threshold, where the first threshold is less than or equal to the second threshold, and before S130, the method 100 further includes:

s121, when the load degree is greater than or equal to the first threshold, the first terminal device determines to send the report information to the network device, or

The first terminal device determines to send the report information to the network device when the load degree is greater than or equal to the first threshold and less than or equal to the second threshold, or

The first terminal device determines to send the report information to the network device in case that the load degree is less than or equal to the second threshold.

Specifically, the method is described. The first terminal device may detect a load degree of the shared transmission resource set, for example, the load degree may be a ratio/number of transmission resource units occupied by the second terminal device in the transmission resource set. And by detecting the load degree of the resource units in the transmission resource set, if the load degree is greater than or equal to the first threshold value, sending the report information to the first terminal equipment. Thus, under the condition of smaller load degree, because more resource units in the transmission resource set are in an available state, the network device can allocate resources to the first terminal device in the transmission resource set according to the requirement of the existing centralized transmission mode, and can also reduce the probability of the transmission resource conflict between the allocation of the transmission resource to the first terminal device and the transmission resource conflict autonomously selected by the terminal device adopting the distributed transmission mode to a great extent. The communication efficiency is further improved.

Optionally, in a case that the load degree is greater than or equal to the first threshold and less than or equal to the second threshold, the first terminal device determines to send the report information to the network device, so that it may be further determined that the reporting condition is met. For example, it can be specified that different numbers of resource units are reported for different load situations. For example, the first threshold is 0.5, the second threshold is 0.6, and when the load metric value is greater than or equal to 0.5 and less than or equal to 0.6, 10 available resource units are reported. Or, when the load degree value is more than or equal to 0.6 and less than or equal to 0.7, 5 available resource units are specified to be reported. Therefore, the resource consumed by reporting can be further saved, and the utilization rate of the resource and the reporting certainty are improved. The communication efficiency is further improved.

Optionally, in a case that the load degree is less than or equal to the second threshold, the first terminal device determines to send the report information to the network device. That is, reporting can be performed under the condition that the specified load degree is smaller than the second threshold, so that the network device can be informed of the use conditions of all resource units of the transmission resource pool more accurately, and the problem that the resources allocated to the first terminal device by the network device are unlikely to collide is solved, that is, the communication quality is ensured.

Optionally, as an embodiment, the load degree includes:

the load degree of the resource units used by the third terminal device in the transmission resource set, or

A loading degree of resource units in the transmission resource set used by the second terminal device and the third terminal device.

Specifically, the set of transmission resources is a set of transmission resources common to a second terminal device (mode3 UE) employing a centralized scheduling transmission mode and a third terminal device (mode4 UE) employing a distributed transmission mode. For the centralized scheduling transmission mode, since it is the mode in which the network device allocates resources, the network device knows which resource unit resources of the set of transmission resources are allocated by the second terminal device. It is not known which resource units are occupied by the third terminal device, so that the first terminal device only needs to detect the load degree of the resource units used by the third terminal device in the transmission resource set, thereby reducing the resources used for detection and reporting and saving energy consumption. After which resource units in the network device or the resource pool are used by the third terminal device, it can be determined which resource units are available in combination with which resource units already known to the network device are used by the second terminal device using the centralized scheduling transmission mode.

Optionally, as an embodiment, the load degree detected by the first terminal device may also be a load degree of a resource unit used by the third terminal device and the second terminal device in the transmission resource set. The embodiments of the present application are not limited thereto.

It should be understood that the above-mentioned load degree is all resource units used by the third terminal device, or all resource units used by the third terminal device and the second terminal device. The embodiments of the present application are not limited thereto.

Optionally, as an embodiment, the first configuration information further includes a third threshold M and/or a fourth threshold T, where M is less than or equal to T, and the method 100 further includes:

the first terminal device determines K available resource units in the transmission resource set, where K is less than or equal to M; or

The first terminal equipment determines K available resource units in the transmission resource set, wherein K is greater than or equal to T; or

The first terminal device determines K available resource units in the transmission resource set, K being greater than or equal to M and less than or equal to T.

The idle resource unit information in the report information is the information of the K idle resource units.

Specifically, when the first terminal device has multiple available resource units in the transmission resource set, if the information of all available resource units is reported, the signaling overhead and the resource consumption increase. Therefore, the network device may determine the required resource situation, for example, the number of required resource units, according to the situation of data transmission of the first terminal device. Determining a third threshold value M and/or a fourth threshold value T, wherein M is less than or equal to T, and the configuration information further comprises the third threshold value M and/or the fourth threshold value T.

Optionally, the first terminal device determines K available resource units from the multiple idle resource units, where K is less than or equal to M, and then reports information of the K available resource units to the network device. Thus, on the premise of meeting the transmission resource required by the first terminal equipment. The overhead and resource consumption of signaling can be further reduced.

Optionally, the first terminal device may further determine K available resource units in the transmission resource set, where K is greater than or equal to T. That is, the number of the reported resource units has a lower limit value, so that it can be ensured that the resources allocated to the first terminal device are sufficient, and the first terminal device can normally transmit data.

Optionally, the first terminal device may further determine K available resource units in the transmission resource set, where K is greater than or equal to M and less than or equal to T. The network device may determine the number of resource units required according to the condition of the resource required by the first terminal device, for example. A lower limit value M and an upper limit value T for reporting may also be determined. The first terminal device determines K idle resource units in the idle resource units, wherein K is less than or equal to M and greater than or equal to T. Thus, the overhead and resource consumption of the signaling are reduced. It is also possible to ensure that the transmission resources required by the first terminal device are met. The first terminal equipment can be ensured to send data normally, and the communication quality is improved.

It should be appreciated that the first terminal device may determine the K available resource units in a variety of ways. For example. The first terminal device may randomly select K available resource units from all available resource units, or may sort the available resource units according to a certain rule, for example, sort the available resource units in order from small to large according to the energy values of the resource units, and select the first K available resources. Other rules or methods may be used, and embodiments of the present application are not limited thereto.

Optionally, as an embodiment, the first terminal device and the second terminal device are located in a first cell, and the third terminal device is located in a second cell.

Specifically, the second terminal device and the third terminal device using the transmission resource set may be in different cells, that is, the second terminal device adopting the centralized scheduling transmission mode and the third terminal device adopting the distributed transmission mode are located in different cells. The centralized scheduling transmission resource set allocated by the network device to the second terminal device in the first cell and the distributed transmission pool allocated to the third terminal device in the second cell may overlap at the edge of the two cells. In this case, there may be a phenomenon that transmission resources collide. Therefore, the technical solution in the embodiment of the present application may also be adopted to ensure that the first terminal device adopting the centralized scheduling transmission mode can normally communicate. The communication efficiency is improved.

In the method for directly connecting link data transmission provided in the embodiment of the present application, when a distributed transmission resource set and a centralized scheduling resource pool are overlapped, a network device may send configuration information of a shared transmission resource set to a first terminal device that needs to apply for a transmission resource, where the first terminal device may detect a resource unit in the transmission resource set to determine a usage situation of the transmission resource set, and the network device allocates a transmission resource to the first terminal device according to the usage situation of the transmission resource set, so as to avoid or reduce a probability that a conflict is generated between allocation of the transmission resource to the first terminal device and an autonomous selection of the transmission resource by a terminal device that employs a distributed transmission mode. The guarantee rate of smooth communication of the terminal equipment adopting the centralized scheduling transmission mode is improved, and the communication quality and the user experience are improved.

Optionally, as an embodiment, the first terminal device, the second terminal device, and the third terminal device may also be located in the same cell. The embodiments of the present application are not limited thereto.

Optionally, as an embodiment, before S120, the method 100 further includes:

the first terminal equipment receives second configuration information sent by the network equipment, the second configuration information comprises a fifth threshold value and/or a sixth threshold value, the fifth threshold value is less than or equal to the sixth threshold value,

the first terminal device detects the load degree of the resource unit in the transmission resource set according to the information of the transmission resource set, including:

the first terminal device detects the load degree in a case where the signal quality of the network device detected by the first terminal device is less than or equal to a fifth threshold, or

The first terminal device detects the load degree in case the signal quality of the network device detected by the first terminal device is greater than or equal to a sixth threshold, or

The first terminal device detects the load degree when the signal quality of the network device detected by the first terminal device is greater than or equal to a fifth threshold value and less than or equal to a sixth threshold value.

Specifically, when the first terminal device moves within the first cell, the first terminal device will continuously receive the signal sent by the network device, and when the first terminal device detects that the received information quality is less than or equal to the fifth threshold, it proves that the network device is at the edge of the first cell. At the cell edge, a situation may occur in which a resource unit in a transmission resource pool used by a first terminal device is occupied by a terminal device in another cell. Therefore, the first terminal device will start to detect the load condition of the resource units in the transmission resource pool. The detection of the load condition of the transmission resource set can be more accurately carried out, resources used in load detection are saved, and the resource utilization rate is improved.

Optionally, the higher the signal quality of the network device received by the first terminal device is, the closer the distance to the network device is proved to be. The lower the signal quality, the farther away from the network device, i.e., closer to less than the edge, is the proof. Therefore, the position of the first terminal device is determined more accurately. The configuration information may also be a sixth threshold, the fifth threshold being less than or equal to the sixth threshold. And judging whether the first terminal equipment is at the edge of the cell or not by utilizing the fifth threshold and the sixth threshold. And when the signal quality received by the network device is greater than or equal to the fifth threshold and less than or equal to the sixth threshold, determining that the first terminal device is at the edge of the cell, and the first terminal device starts to detect the load condition of the resource unit in the transmission resource pool according to the configuration information. The method and the device can more accurately limit the condition that the first terminal equipment starts to detect the transmission resource pool, improve the detection accuracy and efficiency, avoid unnecessary detection and reduce the resource consumption.

Optionally, in a case that the signal quality of the network device detected by the first terminal device is greater than or equal to a sixth threshold, the first terminal device determines to start detecting the load degree, so that it is ensured that the load degree of the transmission resource set is detected in time. The resource units in the transmitted resource set are prevented from being used by other terminal equipment and not detected, and the accuracy of the load degree of the transmitted resource set is ensured.

When the method for directly connecting link data transmission provided by the embodiment of the application moves to the edge of the cell by adopting the first terminal equipment in the centralized scheduling transmission mode, in case of detecting that there is an overlap between resource units of a transmission resource pool allocated to the first terminal device in the current cell (first cell) and transmission resources of terminal devices in other cells (second cells) that employ a distributed transmission mode and/or a centralized scheduling transmission mode, the first terminal device may detect resource units in the resource pool, determine usage of the resource pool, and sends the information of the free or available resource units in the resource pool to the network device, the network device allocates the transmission resources to the first terminal device according to the load information of the resource units, it is possible to avoid that the allocation of transmission resources to the first terminal device conflicts with the transmission resources of terminal devices in other cells. The method and the device ensure that the terminal equipment adopting the centralized scheduling transmission mode in the cell can smoothly communicate, and improve the communication quality and the user experience.

It is to be understood that the second configuration information may be the first configuration information, and may be additional other information different from the first configuration information. The embodiments of the present application are not limited thereto.

It should be understood that, in the embodiments of the present application, the sizes of the sequence numbers of the above-mentioned processes and steps do not mean the execution sequence, and the execution sequence of each process should be determined by its function and the inherent logic, and should not impose any limitation on the implementation process of the embodiments of the present application.

The method for directly connecting link data transmission according to the embodiment of the present application is described in detail above with reference to fig. 1 to fig. 7, and the terminal device and the network device according to the embodiment of the present application are described in detail below with reference to fig. 8 to fig. 11.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application. It should be understood that the terminal device may refer to the first terminal device described above, the terminal device embodiment and the method embodiment correspond to each other, similar descriptions may refer to the method embodiment, and the terminal device 200 shown in fig. 8 may be configured to perform steps corresponding to those performed by the first terminal device in fig. 6 and 7. The terminal device 200 includes: the device comprises a processor 210, a memory 220 and a transceiver 230, wherein the processor 210, the memory 220 and the transceiver 230 are connected in a communication mode, the memory 220 stores instructions, the processor 210 is used for executing the instructions stored in the memory 220, and the transceiver 230 is used for executing specific signal transceiving under the driving of the processor 210.

The transceiver 230 is configured to receive first configuration information sent by a network device, where the first configuration information includes information of a transmission resource set, where the transmission resource set is a transmission resource set that is common to a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode;

the processor 210 is configured to detect a loading level of a resource unit in the transmission resource set according to the information of the transmission resource set;

the transceiver 230 is also configured to: and sending report information to the network equipment, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set.

In the terminal device provided in the embodiment of the present application, under a condition that a distributed transmission resource set and a centralized scheduling resource pool are overlapped, a network device may send configuration information of the transmission resource set (overlapped resource pool) to a terminal device that needs to apply for transmission resource, the terminal device may detect resource units in the transmission resource set, determine a usage situation of the transmission resource set, and send information of idle or available resource units in the transmission resource set to the network device, and the network device allocates transmission resources to the terminal device according to the information of the resource units. This can avoid the conflict between the allocation of transmission resources to the terminal device and the transmission resources autonomously selected by the terminal device using the distributed transmission mode. The communication of the terminal equipment can be ensured, and the communication quality and the user experience are improved.

The various components in the terminal device 200 communicate control and/or data signals with each other via the communication links, i.e., via internal connection paths between the processor 210, the memory 220, and the transceiver 230. The above method embodiments of the present application may be applied to a processor, or the processor may implement the steps of the above method embodiments. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The processor may be a Central Processing Unit (CPU), a Network Processor (NP) or a combination of a CPU and an NP, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an FPGA (field programmable gate array) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic blocks disclosed in this application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in this application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

Optionally, in another embodiment of the present application, the first configuration information further includes a first threshold and/or a second threshold, the first threshold is less than or equal to the second threshold,

the processor 230 is further configured to: determining to send the report information to the network device if the load degree is greater than or equal to the first threshold; or

Determining to send the report information to the network device if the load level is greater than or equal to the first threshold and less than or equal to the second threshold; or

Determining to send the report information to the network device if the load level is less than or equal to the second threshold.

Optionally, in another embodiment of the present application, the load degree includes:

a load level of resource units in the transmission resource set used by the third terminal device; or

A loading level of resource units in the transmission resource set used by the second terminal device and the third terminal device.

Optionally, in another embodiment of the present application, the first configuration information further includes a third threshold M and/or a fourth threshold T, M is less than or equal to T,

the processor 210 is further configured to: determining K available resource units in the transmission resource set, K being less than or equal to M; or

Determining K available resource units in the transmission resource set, K being greater than or equal to T; or

Determining K available resource units in the transmission resource set, wherein K is greater than or equal to M and less than or equal to T;

Optionally, in another embodiment of the present application, before the processor 210 detects the load level of the resource units in the transmission resource set,

the transceiver 230 is also configured to: receiving second configuration information sent by the network device, where the second configuration information includes a fifth threshold and/or a sixth threshold, and the fifth threshold is less than or equal to the sixth threshold;

the processor 210 is specifically configured to: detecting a load degree of the set of transmission resources in case the detected signal quality of the network device is less than or equal to a fifth threshold; or

Detecting the load degree in case that the detected signal quality of the network device is greater than or equal to a sixth threshold; or

The load degree is detected in a case where the detected signal quality of the network device is greater than or equal to a fifth threshold value and less than or equal to a sixth threshold value.

Optionally, in another embodiment of the present application, the terminal device adopts a centralized scheduling transmission mode or a distributed transmission mode.

Optionally, in another embodiment of the present application, after the transceiver 230 sends the report information to the network device, the transceiver 230 is further configured to:

receiving resource scheduling information sent by the network device, the resource scheduling information being generated according to the report information, the resource scheduling information including resource unit information in the transmission resource set allocated for the terminal device.

It should be noted that in the embodiment of the present application, the processor 210 may be implemented by a processing module, the memory 220 may be implemented by a storage module, and the transceiver 230 may be implemented by a transceiver module, as shown in fig. 9, and the terminal device 300 may include a processing module 310, a storage module 320, and a transceiver module 330.

The terminal device 200 shown in fig. 8 or the terminal device 300 shown in fig. 9 can implement the steps performed by the first terminal device in fig. 6 and fig. 7, and are not described herein again to avoid repetition.

Fig. 10 shows a schematic block diagram of a network device 400 of one embodiment of the present application. It should be understood that the network device embodiment corresponds to the method embodiment, and similar descriptions may refer to the method embodiment, as shown in fig. 10, the network device 400 includes: the processor 410, the memory 420 and the transceiver 430 are connected in a communication manner, the memory 420 stores instructions, the processor 410 is used for executing the instructions stored in the memory 420, and the transceiver 430 is used for executing specific signal transceiving under the driving of the processor 410.

The transceiver 430 is configured to send first configuration information to a first terminal device, where the first configuration information includes information of a transmission resource set, and the transmission resource set is a transmission resource set that is common to a second terminal device using a centralized scheduling transmission mode and a third terminal device using a distributed transmission mode;

the transceiver 430 is also configured to: and receiving report information sent by the first terminal equipment, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set.

In the network device provided in the embodiment of the present application, under the condition that a distributed transmission resource set and a centralized scheduling resource pool are overlapped, the network device may send configuration information of the transmission resource set (overlapped resource pool) to a terminal device that needs to apply for transmission of a resource, the terminal device may detect a resource unit in the transmission resource set, determine a usage situation of the transmission resource set, and send information of an idle or available resource unit in the transmission resource set to the network device, and the network device allocates a transmission resource to the terminal device according to the information of the resource unit. This can avoid the conflict between the allocation of transmission resources to the terminal device and the transmission resources autonomously selected by the terminal device using the distributed transmission mode. The communication of the terminal equipment can be ensured, and the communication quality and the user experience are improved.

The various components in network device 400 communicate control and/or data signals via the communication links, i.e., the communication links between processor 410, memory 420, and transceiver 430, via the internal connection paths. The above method embodiments of the present application may be applied to a processor, or a processor may implement the steps of the above method embodiments. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The processor may be a CPU, a network processor NP or a combination of CPU and NP, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps, and logic blocks disclosed in this application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in this application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

Optionally, in another embodiment of the present application, the first configuration information further includes a first threshold and/or a second threshold, where the first threshold is smaller than or equal to the second threshold, and the first threshold and/or the second threshold are used for the first terminal device to determine to send the report information to the network device according to the load degree of the transmission resource set.

Optionally, in another embodiment of the present application, the first configuration information further includes a third threshold M and/or a fourth threshold T, M is less than or equal to T, and the available resource unit information in the report information is information of K available resource units, wherein,

k is less than or equal to M, or

K is greater than or equal to T, or

K is greater than or equal to M and less than or equal to T.

Optionally, in another embodiment of the present application, the transceiver 430 is further configured to: and sending second configuration information to the first terminal device, wherein the second configuration information includes a fifth threshold and/or a sixth threshold, the fifth threshold is smaller than or equal to the sixth threshold, and the fifth threshold and/or the sixth threshold are used for the first terminal device to determine to start detecting the load degree of the transmission resource set.

a load level of resource units used by the third terminal device in the transmission resource set; or

Optionally, in another embodiment of the present application, the first terminal device uses a centralized scheduling transmission mode or a distributed transmission mode.

Optionally, in another embodiment of the present application, the transceiver 430 is further configured to: and resource scheduling information is sent to the first terminal device, the resource scheduling information is generated according to the report information, and the resource scheduling information comprises resource unit information in the transmission resource set allocated to the first terminal device.

It should be noted that in the embodiment of the present invention, the processor 410 may be implemented by a processing module, the memory 420 may be implemented by a storage module, and the transceiver 430 may be implemented by a transceiver module, as shown in fig. 11, and the network device 500 may include a processing module 510, a storage module 520, and a transceiver module 530.

The network device 400 shown in fig. 10 or the network device 500 shown in fig. 11 can implement the foregoing steps performed by the network devices in fig. 6 and fig. 7, and are not described herein again to avoid repetition.

Embodiments of the present application further provide a computer-readable medium for storing a computer program code, where the computer program includes instructions for executing the method for directly connecting link data transmission in fig. 6 and 7. The readable medium may be a read-only memory (ROM) or a Random Access Memory (RAM), which is not limited in this embodiment of the present application.

The embodiment of the present application further provides a communication system, where the communication system includes the terminal device provided in the embodiment of the present application and the network device provided in the embodiment of the present application, and the communication system may complete any method for transmitting data of a direct link provided in the embodiment of the present application.

An embodiment of the present application further provides a system chip, where the system chip includes: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit may execute computer instructions to enable a chip in the terminal to perform the method for direct link data transmission according to any one of the first aspect.

Optionally, the computer instructions are stored in a storage unit.

Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, and the like. The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for executing programs for controlling the first method for direct link data transmission.

It should be understood that the term "and/or" and "at least one of a or B" herein is merely one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for direct link data transmission, comprising:

a first terminal device receives first configuration information sent by a network device, wherein the first configuration information includes information of a transmission resource set, the transmission resource set is a transmission resource set shared by a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode, the first configuration information further includes a first threshold and/or a second threshold, and the first threshold is smaller than or equal to the second threshold;

the first terminal equipment detects the load degree of resource units in the transmission resource set according to the information of the transmission resource set, wherein the load degree comprises the proportion of occupied resources to all resources;

the first terminal equipment sends report information to the network equipment according to the load degree, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set;

before the first terminal device sends the report information to the network device, the method further includes:

the first terminal device determines to send the report information to the network device if the load degree is greater than or equal to the first threshold; or

The first terminal device determines to send the report information to the network device if the load degree is greater than or equal to the first threshold and less than or equal to the second threshold; or

The first terminal device determines to send the report information to the network device if the load degree is less than or equal to the second threshold.

2. The method of claim 1, wherein the first configuration information further comprises a third threshold value M and/or a fourth threshold value T, M being less than or equal to T, the method further comprising:

the first terminal equipment determines K available resource units in the transmission resource set, wherein K is less than or equal to M; or

The first terminal equipment determines K available resource units in the transmission resource set, wherein K is greater than or equal to M and less than or equal to T;

the available resource unit information in the report information is information of the K available resource units.

3. The method according to claim 1 or 2, characterized in that before the first terminal device detects the degree of loading of resource units in the set of transmission resources, the method further comprises:

the first terminal device receives second configuration information sent by the network device, wherein the second configuration information comprises a fifth threshold and/or a sixth threshold, and the fifth threshold is smaller than or equal to the sixth threshold;

the first terminal device detects the load degree of the resource unit in the transmission resource set according to the information of the transmission resource set, and the method comprises the following steps:

The first terminal device detects the load degree when the signal quality of the network device detected by the first terminal device is greater than or equal to a fifth threshold and less than or equal to a sixth threshold.

4. The method according to claim 1 or 2, characterized in that the first terminal device employs a centrally scheduled transmission mode or employs a distributed transmission mode.

5. The method according to claim 1 or 2, wherein after the first terminal device sends the report information to the network device, the method further comprises:

and the first terminal equipment receives resource scheduling information sent by the network equipment, wherein the resource scheduling information is generated according to the report information, and the resource scheduling information comprises resource unit information in the transmission resource set allocated to the first terminal equipment.

6. A method for data transmission over a direct link, the method comprising:

the method comprises the steps that network equipment sends first configuration information to first terminal equipment, wherein the first configuration information comprises information of a transmission resource set, the transmission resource set is a transmission resource set which is common to second terminal equipment adopting a centralized scheduling transmission mode and third terminal equipment adopting a distributed transmission mode, the first configuration information further comprises a first threshold value and/or a second threshold value, the first threshold value is smaller than or equal to the second threshold value, the first threshold value and/or the second threshold value are used for the first terminal equipment to determine to send report information to the network equipment according to the load degree of the transmission resource set, and the load degree comprises the proportion of occupied resources to all resources;

and the network equipment receives report information sent by the first terminal equipment, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set.

7. The method of claim 6, wherein the first configuration information further comprises a third threshold M and/or a fourth threshold T, M is less than or equal to T, and the available resource unit information in the report information is information of K available resource units,

k is less than or equal to M, or

K is greater than or equal to T, or

K is greater than or equal to M and less than or equal to T.

8. The method according to claim 6 or 7, further comprising:

the network device sends second configuration information to the first terminal device, where the second configuration information includes a fifth threshold and/or a sixth threshold, the fifth threshold is less than or equal to the sixth threshold, and the fifth threshold and/or the sixth threshold are used for the first terminal device to determine to start detecting the load degree of the transmission resource set.

9. The method according to claim 6 or 7, characterized in that the first terminal device employs a centralized scheduling transmission mode or a distributed transmission mode.

10. The method according to claim 6 or 7, wherein after the network device receives the report information sent by the first terminal device, the method further comprises:

and the network device sends resource scheduling information to the first terminal device, wherein the resource scheduling information is generated according to the report information, and the resource scheduling information comprises resource unit information in the transmission resource set allocated to the first terminal device.

11. A terminal device, comprising a processor, a transceiver, and a memory, wherein the memory is configured to store instructions, and the processor is configured to execute the instructions stored by the memory to control the transceiver to receive or transmit signals, and wherein the terminal device is a first terminal device;

the transceiver is configured to receive first configuration information sent by a network device, where the first configuration information includes information of a transmission resource set, the transmission resource set is a transmission resource set that is common to a second terminal device adopting a centralized scheduling transmission mode and a third terminal device adopting a distributed transmission mode, the first configuration information further includes a first threshold and/or a second threshold, and the first threshold is smaller than or equal to the second threshold;

the processor is configured to detect a load degree of a resource unit in the transmission resource set according to the information of the transmission resource set, where the load degree includes a proportion of occupied resources to all resources;

the transceiver is further configured to: sending report information to the network device, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set;

the processor is further configured to: determining to send the report information to the network device if the load level is greater than or equal to the first threshold; or

12. The terminal device according to claim 11, wherein the first configuration information further comprises a third threshold value M and/or a fourth threshold value T, M being smaller than or equal to T,

the processor is further configured to: determining K available resource units in the transmission resource set, wherein K is less than or equal to M; or

Determining K available resource units in the transmission resource set, K being greater than or equal to M and less than or equal to T;

13. A terminal device according to claim 11 or 12, characterized in that, before the processor detects the degree of loading of resource units in the set of transmission resources,

the transceiver is further configured to: receiving second configuration information sent by the network device, where the second configuration information includes a fifth threshold and/or a sixth threshold, and the fifth threshold is less than or equal to the sixth threshold;

the processor is specifically configured to: detecting the degree of load, or

Detecting the load degree in case the detected signal quality of the network device is greater than or equal to a sixth threshold, or

Detecting the degree of loading if the detected signal quality of the network device is greater than or equal to a fifth threshold and less than or equal to a sixth threshold.

14. The terminal device according to claim 11 or 12, wherein the terminal device employs a centralized scheduling transmission mode or a distributed transmission mode.

15. The terminal device of claim 11 or 12, wherein after the transceiver sends the report information to the network device, the transceiver is further configured to:

receiving resource scheduling information sent by the network device, where the resource scheduling information is generated according to the report information, and the resource scheduling information includes resource unit information in the transmission resource set allocated to the terminal device.

16. A network device comprising a processor, a transceiver, and a memory, the memory storing instructions, the processor executing the instructions stored by the memory to control the transceiver to receive or transmit signals;

the transceiver is configured to send first configuration information to a first terminal device, where the first configuration information includes information of a transmission resource set, the transmission resource set is a transmission resource set that is common to a second terminal device that employs a centralized scheduling transmission mode and a third terminal device that employs a distributed transmission mode, the first configuration information further includes a first threshold and/or a second threshold, the first threshold is less than or equal to the second threshold, the first threshold and/or the second threshold are used for the first terminal device to determine, according to a load degree of the transmission resource set, to send report information to the network device, where the load degree includes a proportion of occupied resources to all resources;

the transceiver is further configured to: and receiving report information sent by the first terminal equipment, wherein the report information comprises information of occupied resource units and/or information of available resource units in the transmission resource set.

17. The network device of claim 16, wherein the first configuration information further includes a third threshold M and/or a fourth threshold T, M is less than or equal to T, and the available resource unit information in the report information is information of K available resource units,

k is less than or equal to M, or

K is greater than or equal to T, or

K is greater than or equal to M and less than or equal to T.

18. The network device of claim 16 or 17, wherein the transceiver is further configured to: sending second configuration information to the first terminal device, where the second configuration information includes a fifth threshold and/or a sixth threshold, and the fifth threshold and/or the sixth threshold are used for the first terminal device to determine to start detecting the load degree of the transmission resource set.

19. Network device according to claim 16 or 17, wherein said first terminal device is adapted to use a centrally scheduled transmission mode or to use a distributed transmission mode.

20. The network device of claim 16 or 17, wherein the transceiver is further configured to: and resource scheduling information is sent to the first terminal device, the resource scheduling information is generated according to the report information, and the resource scheduling information includes resource unit information in the transmission resource set allocated to the first terminal device.

21. A computer-readable storage medium storing a computer program for executing the instructions of the method for direct link data transmission according to any of claims 1 to 10.